How to output HTML file from XML and XSLT stylesheet

I've created a XML data document and an XSLT stylesheet, and I want to output an HTML document based on the two. My stylesheet has the tag, and my XML document has the processor instuction (along with various "xsl:value-of" references). My question is, what are the actual "mechanics" of getting the XSLT processor (which, I understand, is built in to all web browsers) to read the XML and XSLT stylesheet files and output the HTML document, which will then display on the browser? The XML book that I've been reading doesn't specify this! Thank you